<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<input type="text" placeholder="员工姓名" id="i1">
<input type="text" placeholder="员工工资" id="i2">
<input type="text" placeholder="员工工作" id="i3">
<input type="button" value="添加" onclick="f()">
<table border="1">
<captain>员工列表</captain>
    <tr>
        <th>姓名</th><th>工资</th><th>工作</th>
    </tr>
</table>
<script>
    let i1=document.querySelector("#i1");
    let i2=document.querySelector("#i2");
    let i3=document.querySelector("#i3");
    let t=document.querySelector("table");
    function f() {
        let tr=document.createElement("tr");
        let nameTd=document.createElement("td");
        let salaryTd=document.createElement("td");
        let jobTd=document.createElement("td");
        nameTd.innerText=i1.value;
        salaryTd.innerText=i2.value;
        jobTd.innerText=i3.value;
        tr.append(nameTd,salaryTd,jobTd);
        t.append(tr);
    }
</script>
</body>
</html>